Reply To: Negative Igg and then positive WB? › Forums › Herpes Questions › Negative Igg and then positive WB? › Reply To: Negative Igg and then positive WB? June 20, 2022 at 11:52 pm #77831 Terri WarrenKeymaster yes, the IgG test misses 8% of HSV 2 infections compared to the western blot. Terri